Defined in 3 files as a macro:

• include/net/tcp.h, line 211 (as a macro)
• tools/testing/selftests/bpf/progs/bpf_tracing_net.h, line 87 (as a macro)
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c, line 33 (as a macro)

Referenced in 8 files:

• net/ipv4/tcp.c, line 3579
• net/ipv4/tcp_input.c, line 4633
• net/ipv4/tcp_output.c
  • line 680
  • line 748
• net/netfilter/nf_conntrack_proto_tcp.c, line 372
• net/netfilter/nf_synproxy_core.c
  • line 86
  • line 130
  • line 145
• net/sched/sch_cake.c, line 1203
• tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
  • line 271
  • line 381
  • line 396
• tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
  • line 253
  • line 493